Type-writing machine.



LA. B. SMITH.

TYPE WRITING MACHINE. APPLICATION FILE D JUNE 3,1915- 1,17 7 5416, Patented Mar. 28, 1916.

, 2 SHEETIS-SHEET1 I 'I a INVENTQR ATTORNE J. A. B. SMITH.

TYPE, WRITING MACHINE.

APPLICATION FILED JUNE 3, i915.

Patented Mar.v 28, 1916.

2 SHEETS-SHEET 2- |NVENTOR= ATTOR Y- cate copies.

UNITED STATES'PATENT orat on,

JESSE A. B. SMITH, OF NEW YORK, N. Y., ASSIGNO'B, T0 UNDERWOOD 'TYPEW'EGIITER CDMPANY; OF NEW. YORK, N. Y., A. CORPORATIGN 0E DELAWABE.

TYPE-WRITING {MACHINE hype-Writing Machines, of which the fol-- lowing is a specification.

This invention relates principally to typewriting machines -for writing on a number of superposed webs or continuous sheets, especially those intended to be torn off in sections from the body portion of the web, carbon sheets or inkin ribbons being interleaved with the webs or making the dupli- The present inventionv comprises certain improvements. on the invention disclosed in Patent No, 1,132,055. As shown -in said patent, the webs may be fed forward to the platen over a support or carrier at the rear of the main, paper carriage. The carbon sheets, which are interleaved with the continuous webs, may be attached to a holder or shifting frame mounted on the said carrier to move toward and from the platen to permit the carbon sheets to be fed forward over the printing line with the work sheets or webs, and to permit the carbon sheets to be shifted to anew position relative to the webs.

A feature of the present invention relates to the shifting frame for the carbon sheets,

and to the' means by which said sheets are attached to said frame. Each carbon sheet may be attached to a separate bar or arm; and in accordancewith the present inven tion, each barnnay be removably-held in position on the shifting frame or support as by means of pins or the like at one end of the bar to entercorresponding openings in the support, and permitting the bar to be detached from its support by lifting the bar to withdraw the pins from said openings.

To secure a carbon sheet to its holding arm or bar, a holding clip may be pivotally mounted on the bar at one end thereof to swing into and out of a holding position in which the clip extends longitudinally of the bar to embrace the rear edge of the latter, and thereby clamp thereto a carbon sheet the end of which has been folded over the bar. A detent onsaid clip may engage a holding notch or slot in the bar to retain the clip in sheet clamping position. The

Specification of Letters IE'atent.

Fatentedldar. 28, 3%.3316.

Application filed June 3, 1915. Serial No. 31,5965.

sheet-holding clips on said bars are automatically locked in holding position when the bars are placed on their support as by means of locking'p'ins carried on the support and extending through openings in the bars and clips, the openings in a bar and its clip being brought into register to receive a locking pin only when the clip is in sheet clamping position.

The sheet-holding'hars are preferably rranged in pairs, with the bars 'of each pair attached at opposite ends of the shifting frame and overlapping one another, the

pairs of bars being arranged one behind another to avoid undue separation of the plies of webs, the arrangement of the bars in pairs enabling a comparatively large number of carbon sheets to be employed without unduly increasing the distance that the foremostbars are in advance of the rearmost bars. l

The webs may be fed from said carrier downward and forward over the usual paper-shelf on the platen frame, and thence between the platen and feed rolls a v the under side of the platen, andupward or r the front face of the platen past the printing line. The platen is mounted to be swung upward from .the feed rolls b j a platen-displacement or lifting frame, whereby the carbon sheets are freed from the binding of the webs thereon and permitted to be drawn back ward to a new position, while the portions of the webs that have been written upon may be drawn forward and-severed from the unwritten portions. For holdingsaid platen displacement frame in its normal operative position, a pair of latches or hooks may be fixed to a rock shaft to engage over pins on the ends of said frame. As the frame swings to operative position, said pins may strike the latches and swing them against the'tem sion of a spring into position to permit the latches to snap into holding engagement with the pins. A finger-key on said rock shaft permits the latches to be released. Said platen displacement frame comprises a pa per table, or shelf or support extending upwardly and rearwardly from the delivery side of the platen when the latter is in normal position. 1 he present invention provides a deflector or guide between the printing line and said shelf. to defiectthe webs or work-pieces and guide them to the said shelf as they are fed-for vard beyond the printing line. Said guide is spaced from the platen to permit free passage of the work-pieces, and is mounted to swing with said displacement frame so that its position relative "to the platen remains unchanged as'said frame is swung forward.

Other features and advantages wlll here'- inafter appear.

In the accompanying drawings, Figure 1' is a perspective View showing a portionof an Underwood, typewriting machine, with the present invention applied thereto. Fig. 2 is a sectional elevation of the same, the platen being displaced to release the carbon sheets. Fig.3 is a cross sectional View of.

frame 11 which may be mounted to shift to upper and lower case positions in the usual carriage 12, which may be driven in letterfeed direction by the usual spring motor ,(not shown) and its letter-feed movement controlled by the usual mechanism (not shown). Types 13 may be operated in the usual manner to swing upwardl and rearwardly to strike the front face 0 the platen. Front and rear feed rolls 14 and 15 may be yieldingly held against the platen by springs 16, and codperate with the platen tov feed the work-pieces thereover.

The work-pieces, which may consist of continuous sheets or webs of paper 17, and each of which may comprise a continuous series of printed forms, may be fed forward! over a carrier comprising a frame 18 extending rearwardly from the carriage 12 and connected to travel. therewith in letterfeed direction. The front end of the carrier-frame 18 mav be connected to the cargi'age by means of pivots 19, and said frame 'fnay be supported at its rear end by a roller 20 on a bracket 20 on the frame, which roller runs on a guideerail 21 forming part of a stationary supporting frame 22, which at its front end may be rigidly connected as by means of screws 23 to the main frame 24 of the machine. The bracket 20 may hook beneath the rail 21 to prevent the frame 18 from being lifted out of place. Feet 24 on the frame 18 directly over the rail 21, normally just clear said rail and protect the frame against any 1 torsional or twisting strain due to a one sided pressure applied to the frame. The rail 21 may extend beyond the frame 22 to support said feet while the frame 18 is at any lateral position.

The webs 17 extend forward over the carrier 18 to the paper-shelf 25, which may form part of the platen frame. The webs are guided downwardly and forwardly over said shelf, and between the platen and the pressure rolls-15 and 14,; and thence upwardly' over the front face of the platen past the printing line. Carbon sheets or inking ribbons 2,6 are interleaved with the webs 17 for making the carbon copies. In Fig. 2, the carbon sheets are shown in full lines, and the webs 17 in broken lines, to clearly distinguish from the carbon sheets.

' The carbon sheets are attached to a shifting frame or holder 27, the latter mounted on the carrier 18 to travel toward and from the platen, so that the carbon sheets may be fed forward with the webs, and then carried back to'a position opposite a fresh portion of the webs. Horizontal grooved rolls '28 on the shifting frame 27 run on guide-rails 29, which may be in the form'of flanges extending outwardly from the side rails 30 of the carrier frame 18.

The carbon sheets maybe individually mounted on' supporting arms or bars 31, each of which is removably attached 'at one end to one end of the shifting frame 27, the

other end of said bar being free. Each carbon sheet is clamped-to its supporting bar by means of a clip 32 connected at one end by a pivot pin 33 to said bar, so that th e clip can swing rearwardly away from the bar to permit the carbon sheet to be placed fthereon, with theend of the sheet doubled to'extend on both sides of the bar.' The clip 32 may then be'swun'g forward to clamp the sheet to the bar, the clip comprising upper and lower sheet-engaging portions which extend, respectively, above and below the bar. A detent 34 on said clip may engage in a slot or notch 35 in the bar when the clip is in sheet-holding position, whereby both'the clip and the carbon sheet are securely held.

The pivot pin 33 may be formed with a head providing a handle for manipulating the;

The bars 31 are removably mounted on the shifting frame 27 by means of dowel pins 36, which may be fixed to the bars and fit in openings 37 in brackets ,38 attached to the ends of the frame 27.- Each bar 31' and its clip 32 are provided with openings 39 which are in register when the clip is in sheet-clamping position, and which also register with a pin 40 in the bracket 38, when the dowel pins 36 enter their sockets, so

that said pin 40 enters the openings 39 brackets 38 are prefer-" These bars are preferably arranged so that shifting of the platen, it is both the gears 53 and 54.

the bars for each two adjacent carbon sheets are attached at opposite ends of the frame 27, thereby enabling the carbon sheets to be interleaved with webs which are formed from a single sheet folded zigzag or fanshape, as shown in the patent above referred to.

In accordance with the present invention, the bars 31 are preferably arranged in pairs, with one bar of each pair overlying the other. Thus, as shown in Fi 1, the bar .31 is attached to the bracket 38 at the lefthand end of the frame 26 and overlies the bar 31 attached at the right-hand end of the frame 26. The supporting surfaces pf the bracket 38, at the left-hand end of the 'frame, may be slightly higher than the corresponding surfaces on the opposite bracket, to permit the sheet-holding bars to extend horizontally, one over the other. Each bar 1 may be provided with a age 31 for the edge of the carbon sheet. hese gages are shown as notches in the bars. 1

The platen may be rotated either by means of a hand wheel 41 or a line-space lever 42 operating through a slide and pawl, as is usual in the Underwood machines, to drive a line space ratchet wheel 43, fixed to an axle 44. The axle 44 is separate from the a'xle 45 to which the platen is fixed, and a driving connection between said axles is effected by a gear train comprising gears 46 and 47 secured respectively to the shafts 44 and 45 and both meshing with a pinion 48.

The platen is mounted to shift upwardly from its normal position to the Fig. 2 position, both to releasethe webs from the pressure rolls and also to permit'the webs to be unfolded or straightened out, whereby the carbon sheets are released to permit the shifter 27 to be moved backward, thereby bringing the carbon sheets to a new position preparatory to writing on a succeeding form or portion of the webs. To permit this supported on a displacing or lifting frame comprising frame ends or brackets 49 and 50, fixed to a rock shaft 51, journaled in the platen frame 11. As the pinion 48 ismountcd on the shaft 51, which forms the axis of rotation for the platen displacing frame, a permanent driving connection is n'iaintained between the sh ft 44 and the platen, whereby the latter may be rotated while in any position.

In order that the platen may be rotated by ahand wheel 52 or other means at the right-hand of the platen, a driving connection between said hand wheel and the platen is provided by a gear train comprising a gear ,wheel 53 fixed to the platen axle, a gear wheel 54 fixed to an axle 54 carrying the hand wheel 52, and a pinion 55 journaled on the rock shaft 51, and meshing with A stop 56 which portions of the webs,

tends upwardly and rearwardly from the delivery side of the platen while the latter is in its normal position. A bar 58 extending upwardly'and rearwardly beyond the table 57, and which may form a continuation thereof, provides additional support for the webs or work-pieces as they are carried beyond the table 57, and also provides a support for an adjustable gage 59- which maybe clamped by a thumb screw 60 at any position along the bar 58. Said bar is removably attached to the under-face of the table 57 by a clamping screw 61. The platen displacing frame is locked in its normal position by means of hooks or latches 62,63, fixed to a rock shaft 64, said hooks engaging over pins 65, on the frame ends 49 and 50. The latches may be released as by means of a finger key 66, to enable the platen-displacing. frame to be thrown forwardly. When said frame is returned, the pins engage the front edges of the latches and cam the latter rearwardly, spring 67, and allowinto holding position. may be located beneath the paper table 25 as shown in Fig.- 2, and may be inclosed bya cover plate 68, the latter also forming a stop for a lug 68 on the latch 62, thereby limiting the movement of the rock shaft 64.

, The work-pieces as they are advanced lipwardly beyond the printing line are deflected rea wvardly and guided on to the table 57 by means of a guide plate or deflector 69 extending longitudinally of the platen, and

which may be fixed to the rock shaft 51. A tearing blade 70, alsb extending lengthwise of the platen and located above and beyond the guide 69, provides for severing the work-pieces. It will be observed that the deflector 09 and blade 70 both have a fixed relation to the rock shaft 51 so that their position relative to the platen remains unchanged as the latter is displaced to the Fig. 2 position.

\Vhen the typewritten matter on a work form has been completed, the platen may be shifted to the Fig. 2- position, the forward ends ofthe web grasped between the thumb and finger and drawn forward to the gage 59, and the carbon shifter 27 moved rearwardly by means of a handle 71 extending forwardly therefrom, thus positioning the carbon sheets relatively to the webs for writing on a succeeding form or section of the webs; The platen-displacing frame may now be returned to its normal position and the completed work-forms or typewritten I. then severed along the tearing -blade 70, leaving the succeeding said latches to snap against the tension of a I The rock shaft 64 .9

work-form in position to be written upon.

The rearward or return movement of the carbon shifter 27 may be limited by'stops 72. Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others. Having thus described my invention, I claim:

1. In a typewriting machine, the combination with means for guiding webs or con-' tinuous work-sheets past the printing line, of a-shifting frame forming a support for carbon sheets interleaved with said webs,

said frame arranged to advance with the webs to permit the carbon sheets to be fed past the printing line with the webs and movable in the reverse direction to bring the carbon sheets to a new position relative to the webs, and means for attaching the carbon sheets to said shifting frame, said means comprising supporting arms mounted in pairs on the shifting frame with one of the arms of a pair overlying the other arm of the pair, said' arms attached at opposite ends of the shifting frame.

2. In a typewriting machine, the combination with means for guidingwebs or continuous work-sheets past the printing line, of a shifting frame forming a support for carbon sheets interleaved with said webs,

said frame arranged to advance with the webs to permit the carbon sheets to be fed past the printing line with the webs and movable in the reverse direction to bring the carbon sheets to a new position relative to the, webs, a plurality of bars or arms by which said sheets are connected to the support, the latter provided at each end with bearing surfaces arranged in stepped rela tion, whereby the supporting bars attached thereto are arranged at different elevations,

and means for removably holding the bars in position on said surfaces, the surfaces at one end of the support being slightly higher than the surfaces in line therewith at the other end, whereby said bars may be arranged in pairs, one bar of each pair extending inwardly from one end of the supf .hold the bars parallel when in position on the frame, arpluralitv of pins being pro-- vided for each bar whereby it is prevented from swinging out of its position of parallelism with the other bars.

4. In a carbon sheet-holding device, the

combination of a supporting f-rame'and a series of sheet-holding bars or arms removably attached to the frame, said frame and bars provided with holding pins and openings to receive said pins, said pins and openings relatively arranged to permit the bars tr be lifted from the frame, and to hold the bars parallel when in "osition on the frame, a plurality of pins v for each bar whereby itis prevented from swinging out of its position of parallelism with the other bars, and holding clips for clamping the carbon sheets to said bars.

5. In a carbon sheet-holding device, the combination of a supporting frame and a series of sheet-holding Joars or arms removeing provided ably attached to the frame, said frame and bars provided with holding pins and openings to receive said pins, said pmsand oponings relatively arranged to permit thbars to be lifted'from the frame, and to hold the bars parallel when in position on the'frame, a plurality of pins being provided for each bar whereby it is prevented from swinging out of its position of parallelism with the other bars, holding clips for clamping the carbon sheets to said bars, and means on said support for locking the clips in sheetholding position when the bars are tioned on said support. I

6. In a sheet-supporting device, the combination with a bar or arm for the attach-' a ment of a sheet, of a holding clip pivoted tdsaid bar to swinginto and out" of position to clamp the sheet to the bar, a support on which said bar is mounted, and a locking pin on lsaid support, saidclip provided with an opening to receive; said, pin and therdby lock the clip in sheetclamping position. I 4

7. The combination with a sheet-holding bar or arm, of a clip movable into and out I of position to clamp a sheet to said bar, a

, support on which said bar is mounted. and

a clip-locking pin on saids upport, said bar and clip having openings which are in register when the clip is in sheet-clamping position, said openings positioned to receive said locking pin and therebv lock/said clip in clamp ng position.

'8. A supporting "device for aEIieet, comprising a bar or arm, and a clip pivoted to said bar to swing into and out (ifpositiOn to clamp a sheet to the bar, said bar-fand clip provided with openings which are 'brought into register when the clip is in sheetclamping position, s0 as to permit a locking 1 pin to be extended through said opening and lock the clip in sheet-clamping position. I I

9. The combination With a sheet-holding bar or arm, of a clip movable into and out of position to clamp a sheet to said bar, a

suppo' t on which said bar is mounted; holdmg pins on said bar to enter openings prolocking pin on said advanced with the webs, arms or vided in said support and thereby hold the bar iii-position on the support, and aclipsupport, the bar and clip provided with openings brought into registerv by the movement of the clip to sheet-clamping position, said clip-locking pin positioned to enter said last-mentioned openings and thereby lock the clip in sheetclamping position.

The combination of a sheet-clamping bar formed wlth a notch or slot, and. a holding clip pivoted at one end to the bar to permit the clip to swing into and out of position to clamp the sheet to said bar,

said clip provided with a detent to enter said notch or slot to firmly clamp the sheet to the bar and also hold the clip in clamping position.

11. Ina typewriting machine, the combination with means for supporting and guid-' ing a plurality of superposed webs or worksheets as they are fed past the printing line, of means for supporting and shifting interv'ening carbon sheets the last-named means comprising a shifting frame arranged to be bars by means of which the carbon sheets are attached to said frame, each of said bars removable from the frame to permit a carbon sheet to be attached thereto, each bar having means thereon forming a gage forgaging the edge of the carbon sheet, and means for clamping said meet to the bar.

12. In sheet-supporting device, the combination with a bar or arm for the attachment thereto of a sheet, of a holding clipmovable into and out of a position in which it extends along the bar to clamp the sheet thereto, a support on which the bar is mounted, and means on said support to lock the clip in sheet-clamping position, and permitting the clip to be withdrawn from its clamping position only when the bar is ,moved out of its normal position on said support,

18. In a typewriting machine, the combination with means for feeding superposed work-pieces, of a holder for intervening carbon sheets movable with the work-pieces,

and sheet-holding bars for the attachmentof sheets to the holder, each bar supported on one end of the holder to extend between the work-pieces toward the opposite end of the holder. the bars being arranged in pairs, the bars of each pair connected respectively at opposite ends of the holder, one bar of a pair overlying the other, and the pa rs of bars arranged in stepped relation, one in advance of another. l i, In a typewriting machine, the combination with a revoluble platen, of means for. supporting and guiding to and around the platen superposed webs and intervenlng carhon sheets, a platen-displac1ng frame on which the platen is carried, said frame arthe printed portions of ranged to swing and carry the platen into position to free the carbon sheets from the clamping action of the webs, and permit said sheets to be retracted, said displacing frame compms ng a table on which the webs are supported and guided as they are fed beyond and a deflector beyond the printing line by which webs are deflected and guided onto said table, said deflector connected to swing with the platen-displacmg frame.-

15. In a typewriting machine comprising a revolube platen and having an introductory web course extending rearwardly from the platen, over the back of the machine,

the printing line,

the combination of web feeding means to cooperate with the underside of the platen, a shifter in rear of said platen for an interleaved carbon sheet, said shifter mounted a for forward and backward movement, said platen being mounted for an upward movement away from said feeding means to release the webs and carbon sheet from said feeding means and also to lift the carbon sheet from the binding action thereon of the webs and thereby permit the' carbon sheet to be shifted back to position for writing on a fresh portion of the webs, a supporting table at the delivery side of the platen on which the webs are guided beyond the printing line, and a deflector for said webspositionedto deflect and guide the I webs onto said table,

said deflector and table arranged to move with the platen as'the latter moves toward and from said feeding means.

16. In a typewriting machine comprising a revoluble platewand having an introductory web course extending rearwardly from the platen, over the back of the machine, the combination of Web feeding means to cooperate with the underside of the platen, a shifter in rear of said platen for an interleaved carbon sheet, said shifter mounted for forward and backward movement, said platen being mounted for an upward move- 'ment away from said feeding means to release the webs and carbonsheet from said feeding means and also to lift the carbon sheet from the binding action thereon of the webs and thereby permit the carbon sheet to be shifted back to position for writing on a fresh portion of the webs, a supporting table at the delivery side of the platen, on which the printed portions of the webs are guided beyond the printing line, a deflector for said webs positioned to deflect and guide the webs onto said table, said deflector and, table arranged to move with the platen as the latter moves toward and from said feeding means, and a tearing blade located beyond said deflector for severing the printed portions of 'the webs while the ends of thewebs from which the printed portions have been severed,

1 are retained between the platen and said defiector, said tearing blade also arranged to move with the platen.

17. The combination with a rotary platen and a platen frame, said platen mounted to shift relatively to the 'frame into and out of position fpr types to print thereon, of platen- -rotating devices mounted on the platen frame at opposite ends of thelplaten, and each connected to the platen to rotate the same-while in either of said positions, and a' rigid connection between said rotating devices to prevent the platen from twisting during its shifting movement's.

18. The combination with a rotary platen and a platen frame, the platen being mounted for bodily movement relatively to. the frame intr; and out of position for types to strike therea'gainst, of platen-rotating devices located one at each end of the platen,

and mounted on the frame, said devices each permanently connected to the platen for rotating it when in normal position, and a a rigid connection between said rotating deand out of printing position,'a gear connected to each of said rotating devices, a

pair of pinions onecotiperativewitheach gear arranged co-axrally with the hinge of the platen shifting frame, a pair of gears on the platen to connect with said pinions whereby when the platen is shifted it remains in rotative connection with both of said rotating devices, and a shaft whereon said pinions are mounted and forming a rigid connection between the same to prevent the platen from twisting during its shifting movements.

20. The combination of a typewriter letter-feeding carriage, a rotary platen thereon,

said carriage having a rearward sh et-supporting extension, a carrier mounteri on the letter-feeding carriage to connect with interleaved carbon sheets to draw the same rearwardly, sheet-feeding means to bear against the platen, said carriermounted to move forwardly with the work-sheets as the latter are fed forward by the platen and sheetfeedingmeans, said platen being liftable away from the sheet-feeding means, to permit the work-sheets to be straightened out preparatory-to the rearward movement of said carrier to draw back the interleaved carbon sheets, platenrotators on said carriage at opposite ends of the platen, and gear trains connecting said rotators with the platen for rotating the latter, said. gear trains maintaining permanent driving connection from the rotators to the platen dub-- ing the shifting of the platen, and a rigid connection between said gear trains for reventing the platen from being twisted uring its liftingmovements.

21. The combination with a revoluble platen and a frame on which it is carried of platen-rotating devices'monnted on said frame at opposite ends of the platen, said platen beingmoimted for bodily displacement relatively-to said frame and away from said rotating devices, platen driving means" separate from each other permanently coupling the laten to each of said rotating devices, said riving means each comprising a member capable of bodily displacement,

at the displacement of said platen, and a. rigid connectionbetween the two platendriving means for preventing the platen from being twisted during its lifting movements.

22. The combination with a revoluble' nently coupling both said rotators to the platen in a manner to permit said displacemeiitof the platen, and a rigid connection between both coupling means for preventing the platen from being twisted during its lifting movements.

23. The combination, with a sheet-holding bar or arm; of a clip pivoted to said bar to swing into and out of position to clampthe sheet to the bar, said clip comprising spaced upper and lower portions extending, respectively, above and below the bar when the clip is in sheet-clamping position; and .a detent for holding said clip'in sheet-clampin g position.

24. The combination, with a sheet-holding bar or arm; of a clip pivoted to said bar to swing into and out of p sition to clamp the sheet to the bar, snide-u comprising spaced upper and lower portions extend'i tively, above and below the bar when the clip is in sheet-clamping position; and a detent carried by the lower portion of said 26. The combination, with a platen and its frame; of a pair of gear trains, one con- ,respecr nected with each end of said platen, said platen being shiftable bodily relatively to said frame and said trains; and a rigid connection between said gear trains for preventing the platen from being twisted during its shifting movements.

27'. The combination, with a platen and its frame; of a pair of gear trains,'0ne train connected with each end of the platen and each train including a pinion, said platen being shiftable bodily relati 'ely to said frame and said gear trains; and a shaft journaled in said frame parallel with, the axis of the platen and having said pinions mounted thereon, said shaft forming a rigid connection between said gear trains for preventing the platen from being twisted during its shifting movements.

- JESSE A. B. SMITH.

.Vitnesses:

W. G. Wnsrrmui, J nuns DUCKSTINE. 

